Carrier 24ACA Installation Manual
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Carrier 24ACA Installation Manual

Carrier 24ACA Installation Manual

Comfort series puron air conditioners sizes 18 to 60 1 1/2 to 5 nominal tons
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24ACA
COMFORTt SERIES PURONR AIR CONDITIONERS
SIZES 18 TO 60
1 1/2 TO 5 NOMINAL TONS
Fig. 1 --- - 24ACA
NOTE: Read the entire instruction manual before starting the
installation.
Installation Instructions
A05341

TABLE OF CONTENTS

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Step 2 - - Install on Solid Pad
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Summary of Contents for Carrier 24ACA

  • Page 1: Table Of Contents

    ..... . PURONR QUICK REFERENCE GUIDE ... . . A05341 Fig. 1 --- — 24ACA NOTE: Read the entire instruction manual before starting the installation.

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS INSTALLATION RECOMMENDATIONS NOTE: In some cases noise in the living area has been traced to Improper installation, adjustment, alteration, service, gas pulsations from improper installation of equipment. maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or 1.

  • Page 3: Installation

    INSTALLATION 3/8 ---in. Dia. Tiedown Specifications for this unit in residential new construction market Knockouts in Basepan require the outdoor unit, indoor unit, refrigerant tubing sets, (2) Places metering device, and filter drier listed in presale literature. There can be no deviation. Consult the Application Guideline and Service Manual –...
  • Page 4 Installing TXV in Place of Piston Replacing TXV on R---22 Indoor Coil 1. Pump system down to 2 psig and recover refrigerant. 1. Pump system down to 2 psig and recover refrigerant. 2. Remove hex nut from piston body. Use backup wrench on 2.

  • Page 5: Step 6. -Make Piping Connections

    STEP 6. —Make Piping Connections CAUTION WARNING UNIT DAMAGE HAZARD PERSONAL INJURY AND ENVIRONMENTAL Failure to follow this caution may result in equipment HAZARD damage or improper operation. Failure to follow this warning could result in personal To prevent damage to unit or service valves observe the injury or death.
  • Page 6 Table 2—Accessory Usage REQUIRED FOR LOW---AMBI- REQUIRED FOR SEA REQUIRED FOR LONG LINE Accessory ENT APPLICATIONS COAST APPLICATIONS APPLICATIONS* (Over 80 Ft.) (Below 55 °F) (Within 2 miles) Crankcase Heater Evaporator Freeze Thermostat Winter Start Control Yes { Accumulator Compressor Start Assist Capacitor and Relay Motor Master®...

  • Page 7: Step 7. -Make Electrical Connections

    Deep Vacuum Method FINAL TUBING CHECK The deep vacuum method requires a vacuum pump capable of IMPORTANT: Check to be certain factory tubing on both pulling a vacuum of 500 microns and a vacuum gage capable of indoor and outdoor unit has not shifted during shipment. Ensure accurately measuring this vacuum depth.

  • Page 8: Step 8. -Compressor Crankcase Heater

    CONNECT GROUND AND POWER WIRES STEP 10. —Start- -Up Connect ground wire to ground connection in control box for CAUTION safety. Connect power wiring to contactor as shown in Fig. 9. DISCONNECT PER N. E. C. AND/OR UNIT OPERATION AND SAFETY HAZARD LOCAL CODES CONTACTOR Failure to follow this caution may result in minor personal...

  • Page 9: Step 11. -Check Charge

    SEQUENCE OF OPERATION COOLING ONLY PROCEDURE Turn on power to indoor and outdoor units. Transformer is This system requires charging by the subcooling method. energized. 1. Operate unit a minimum of 10 minutes before checking charge. On a call for cooling, thermostat makes circuits R- -Y and R- -G. Circuit R- -Y energizes contactor, starting outdoor fan motor and 2.

  • Page 10: Tech Assistt Diagnostics At- -A- -Glance

    TechAssist™ Diagnostics ---at ---a ---Glance This system is equipped with a system diagnostics tool called the TechAssistt. Follow Table 3 to identify and correct problems in system operation. Table 3—TechAssistt Diagnostics ---at ---a ---Glance Description ... Thermostat cooling call .

  • Page 11: Care And Maintenance

    CARE AND MAINTENANCE For continuing high performance and to minimize possible equipment failure, periodic maintenance must be performed on this equipment. Frequency of maintenance may vary depending upon geographic areas, such as coastal applications. See Owner’s Manual for information. Table 4—Required Liquid ---Line Temperature (°F) LIQUID REQUIRED SUBCOOLING TEMPERATURE (°F)

  • Page 12: Puronr Quick Reference Guide

    S All indoor coils must be installed with a hard shutoff Puron TXV metering device. Catalog No: 24ACA- - 1SI edition date: 10/05 Copyright 2005 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Replaces: NEW...

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